Mrs. Wang’s son had a wedding three years ago, and the daughter-in-law who entered the house was young, beautiful and filial. The neighbors all envied Mrs. Wang for finding a good daughter-in-law, but Mrs. Wang was worried. It turns out that Mrs. Wang is anxious to hold her grandson, but her daughter-in-law’s belly is not moving all the time. Mrs. Wang was very anxious. A neighbor told Mrs. Wang: “I’m afraid your daughter-in-law is suffering from infertility.” What is infertility? Infertility is a condition in which a person has a normal sexual life after marriage or has lived together for one year, has a normal, regular sexual life, and has not used any contraceptive measures, but has not become pregnant. The key to infertility diagnosis and treatment is to identify the cause of infertility. The causes of infertility may include female factors, male factors or unknown causes. The main female infertility factors are: (1) pelvic factors: (1) tubal abnormalities, chronic tubal inflammation, tubal effusion; (2) endometriosis; (3) tuberculous pelvic inflammatory disease; (4) endometritis, endometrial polyps, etc.; (5) uterine fibroids; (6) genital tumors; (7) genital developmental malformations. (2) Ovulation disorders: persistent non-ovulation, polycystic ovary syndrome, premature ovarian failure, congenital ovarian dysplasia, luteinized follicle unruptured syndrome, etc. Male infertility factors: mainly sperm production disorders and sperm transmission disorders. Unexplained infertility is a state of low fertility, including immune factors, abnormal egg quality, abnormal fertilization, etc., but the current testing means cannot confirm the diagnosis.